Complex NumbersHard

Question

The polar form of −5(cos 40^o − i sin 40^o) is

Options

A.5(cos 140^o + i sin 140^o)

B.5(cos 140^o − i sin 140^o)

C.5(cos 40^o − i sin 40^o)

D.5(cos 40^o + i sin 40^o)

Solution

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